diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/module.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c index 281172f01e9a..0351625767b1 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -2159,6 +2159,29 @@ const struct exception_table_entry *search_module_extables(unsigned long addr) return e; } +/* + * Is this a valid module address? + */ +int is_module_address(unsigned long addr) +{ + unsigned long flags; + struct module *mod; + + spin_lock_irqsave(&modlist_lock, flags); + + list_for_each_entry(mod, &modules, list) { + if (within(addr, mod->module_core, mod->core_size)) { + spin_unlock_irqrestore(&modlist_lock, flags); + return 1; + } + } + + spin_unlock_irqrestore(&modlist_lock, flags); + + return 0; +} + + /* Is this a valid kernel address? We don't grab the lock: we are oopsing. */ struct module *__module_text_address(unsigned long addr) { |